Multiple-cylinder two-cycle explosive-engine.



A. WINTON & H. B. ANDERSQN. MULTIPLE CYLINDER TWO-CYCLE BXPLOSIVE ENGINE.

APPLICATION FILED JAN. 24, 1908.

1,101,895, Patented June 30,191L

4 SHEETS-SHEET 1.

A. WINTON & H. B. ANDERSON.

MULTIPLE CYLINDER TWO-CYCLE EXPLOSIVB ENGINE.

APPLICATION FILED JAN. 24. 1908.

a w 4 m M 9 w r 11M M G 0 4" es Mm Jn 8 M4 m a P Vihwaoeo A. WINTON & H. B. ANDERSON.

MULTIPLE CYLINDER TWO-CYCLE EXPLOSIVE ENGINE.

APPLICATION FILED JAN. 24, 1908.

Patented June 30, 1914.

4 SHEETS-SHEET 3.

A. WINTON & H. B. ANDERSON.

MULTIPLE CYLINDER TWO-CYCLE EXPLOSIVE ENGINE.

APPLICATION FILED JAN. 24. 1906.

1,1 01,895 Patented June 30, 1914 4 SHEETS-SHEET communication therewith .ports for the purpose of obtaining suiiiclent Unirnn STAT E;SLEAENT QFFECE.

ALEXANDER wtNroN AND HAROLD- n. ANDERSON, or CLEVELAND,

onro, ass emoas TO THE WINTON MOTOR CARRIAGE COMPANY, OF CIiEVEIZ-AND, OHIO.

MULTIPLE-CYLINDER TWO-CYCLE EXPLOSIVE-EIQ'GINE.

Specification of Letters Patent.

Application filed January 24, 1908. Serial 3T0. 412,504..

tages.

In carrying out this invention, there is provided a primary compressing cylinder for each explosion cylinder, and the end of the piston opposite the explosion end works in the primary compressing cylinder for the purpose of drawing in the charge through the carburetor, and forcing the charge into the explosion chamber of the other cylinder.

The construction is such, furthermore, that there is provided for each primary compress ing cylinder, a separate external chamber in through large volume for the primary compression space, for the purpose of providing an increased volume of less density fed to the explosion cylinders with its consequent scavenging advantages.

Inth accompanying drawings, Figurel, is a central longitudinal view of our improved twin two-cycle explosive engine, one piston being shown elevated, and the other depressed. Fig. 2, is a similar view, the

istons being shown midway their strokes. ig. this a perspective view with one of the cylinderscut in t'wolongitudinally and separated, showing in section the water jacket and the chambers incommunication with the rimary compressing cylinders. Fig. his a lbngitudina-l sectional view through the pater chamber and taken on the line 44- of 1g. 1.. 5-6 of Fig. 1. Fig. 6, is a cross-sectional View onthe line 6-6 of Fig.

The invention as here illustrated, is ap plied to vertically arranged cylinders, though the position of the cylinders may be varied without a-fiecting the invention involved.

Fig. 5, is a similar View on the line '2, as shown. It will supply or primary compression cylindersare cate the two explosion cylinders which are preferably located side by sidb,. as 'here shown.

2 indicates the explosion pistons. lboated in said cylinders, 3 the engine crank sarcasm 4 the pitmen which connect the: pistons to the said crank shaft. Surrounding". the enplosion' ends 5 and 5 ofi'the explosion: cylinders, is the usual water jacketi. on space 7',-

which is so well understood in) this are that further description: is unnecessary.

In carrying out our present. invention, the

pistons 2 serve toppen and closetheenhanst outlet passages 8' and: the explosion: cylinder inlets 9 and 9. Itwill be'robservedi that the exhaust. passages 8 are: in: a plane above or beyond sage 8 is open andalso the inlet passage 9, as shown at the left-hand side of M shown at the right-hand side oi said figure;

when the piston moves up'both ofi these pasf sage-ways are closed;

The explosion cylinder 5 is providedwith or primary :1. combined explosive supply; compressing cylinder 10, wine isin comma nicatlon with the" 9 (shownin-dotted linesaFigs. 11 an 2):. -As

shown in the same figures-in dotted lines-the combined eiiplosive supply or primary cons pression cylinder 1:0

chamber 12 and the passage-ways 9: These passage-ways extend inoppoeite directions and span the space between the two cylin-f ders,.as shown in dotted-lincs-in- Figs. 1- and the plane of theinlet passages finlso that the exhaust will be opened inadvaiicc of the inlet. TWhen': the piston is in the downt ward limit of its movement, theexhaust pass explosion cylinder 58 through a chamber 1 1, and the inletgpaswges I is in communication. with the explosive cylinder 5* through the Patented June 39, fi%.

Referring now to the drawings,.1i--1:indi'- I 2, but as shownin' Fig 6, thesepassage-ways do not communicate with each other.

Each of the pistons 2 ispro'nided with a piston 2 which fitsrespectively in the pri mary compression cylinderslG and 12,. and these pistons-arc formed by laterallyextend ing. flanges on the outer endsofthe pistons be observed that these formed by bores of greater diameter than the diameter of the explosion cylinders, and

that the pistons 2 formthe'inner walls of these compressioncylinders Each COHIPIBSP, sion cylinder is provided at-itsouter and inlet 14 throughflhliohgthe ,1 10

with a carburetor explosive compound from the carbureter is drawn into the primary compression cylindcrs. Attention is directed to the fact that the pistons 2 also serve to open and close the carbureter inlets to the said primary com pression cylinders. liach piston 2 is provided with a deflector liifor the purpose of deflecting the charge fed into the explosion cylinder to the top end thereof, and thereby more eflectively driving out the products of combustion.

For the purpose of convenience in having access to the chambers 11 and 12, they are preferably provided with removable covers 11 and 12 and this is also for the purpose of enabling the cylinders to be cast, as will be readily understood by those skilled in the art of casting.

By reference to Fig. 5, it will be observed that these chambers 11 and 12, which are located respectively between and communicate with the primary compression cylinders 10 and 10, and with the explosion cylinders 5 and 5 are located between the tw' cylinders, or in other words, in the space formed by the curved walls of thecylinders.

i The operation of our improved twin twocycle explosion engine is as follows :-The downward movement of the two respective pistons causes a vacuum to be formed in the primary compression cylinder, and its connectcd chamber 11 or 12 (as the case may 1 primary be), so that when the piston 2 passes below the carburetor inlet opening 14 (as shown at the left-hand side of Fig. 1') the explosive charge will rush in through this opening, entraining air through the carbureter, which makes the explosive mixture and fills the compression chamber and its connected intermediate chamber. When the pistons are in this position, asishown in Fig.

i 1, the inlet 9 to;the explosion cylinder 5 is closed by itspiston 2. The upward movement of the piston 2 at the left of Fig. 1 will compress the explosive charge in the cylindcr 10 and its chamber 12. As soon as the piston 2 of the explosion chamber 5 passes below the inlet passage 9, the compressed charge rushes into the explosion chamber 5 which scavenges the explosion chamber of the products of combustion, and also fills it with the explosive charge to be compressed in the explosive cylinder by the upward movement of the piston 2 therein in the usual way, after which the charge is ex ploded in a manner which is wcll understood by those skilled in the art, and will need no description here.

The object of the intermediate chambers ll and 12 located between the primary compression cylinders 10 and 10, and the inlets 9 and f) is to provide an increased volume of supply of less density in the primary con'ipressing cylinders, so that a larger volume of less highly compressed charge is fed to the explosive cylinders so that the cylinders will be thoroughly scavenged and still contain a full charge of the explosive mixture to be compressed by the upward movement of the piston. It is found that this arrangement is exceedingly effective for the above-mentioned purposes, and it avoids the leakage which occurs around the crank-shaft when the explosive charge is drawn into the crank-case, which is the usual practice in two-cycle engines. It also provides a very eflective way of providing a predetermined volume without being handicapped by the necessary requirements of the size and dimensions of a crank case.

We desire it to be understood that while we here show what we now consider the preferred arrangement and construction of parts, these may be varied without depart ing from the spirit and scope of our invention.

In carrying out our invention, we are not limited to the use of two cylinders, as here shown, for illustrating our improvement, but the number of cylinders may be increased, so long as one iston or cylinder is constructed to deliver t he explosive charge to another cylinder in the series, and the parts combined to cotiperate substantially as herein described.

Having thus described. this invention, what is claimed and desired to be secured by Letters Patent, is

1. An im roved two-cycle engine com rising two exp osive cylinders arranged si e by side, each cylinder havin a primary compression cylinder located getween it and the crank-shaft and of a larger circumference than the circumference of the explosive cy1 inder, pistons for the explosive cylinders havin their lower ends provided with enlarge compression pistons, within the compression cylinders, each explosive cylinder provided with exhaust and inlet ports controlled by the pistons, each compression cylindcr having a carbureter inlet at its outer end and controlled by the compression pistons, and plates secured to the sides of the cylinders and spanning, the space between compressing end located adjacent the cran r shaft, and of a larger circumference than that of the explosive end vof the cylinder, a piston for each explosive cylinder having its inner end provided with an enlarged compression piston, Within the compression end of the cylinder, exhaust and inlet ports con trolled by the explosive pistons, plates secured to the sides of the cylinder and span-,

ning the space between the cylinders and forming two enlarged separate chambers not in communication with each other but each chamber in direct communication with the compression end of one of the cylinders, and each chamber having a direct communication with the explosive end of the other cylinder by an opening in the Wall of the cylinder, 10 substantially as shown and described.

In testimony whereof we aflix our signatures in presence of two witnesses.

ALEXANDER WINTON. HAROLD B. ANDERSON. Witnesses:

O. F. BAUGHMAN, AMos S. NEWTON. 

